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Title: Reference picture selection in an already MPEG encoded bitstream
Authors: Cheung, HK
Chan, YL 
Siu, WC 
Keywords: Data compression
Image motion analysis
Image sequences
Video coding
Issue Date: 2005
Publisher: IEEE
Source: ICIP 2005 : 2005 International Conference on Image Processing : proceedings : September 11-14, 2005, Genova, Italy, v. 1, p. 793-796 How to cite?
Abstract: Reference picture selection (RPS) is the most common error resilience method for robust transmission over lossy networks. However, RPS has been studied for use in realtime encoding, but has not been examined in transmitting an already encoded MPEG bitstream. In this paper, we propose a compressed-domain approach for the efficient implementation of RPS in the pre-encoded MPEG bitstream with minimum requirement on the server complexity. In the proposed algorithm, a novel macroblock based algorithm is used to adaptively select the necessary macroblocks, manipulate them in compressed-domain and send the processed macroblocks to the receiver. Experimental results show that, as compared to the original RPS, the new algorithm reduces the required server complexity significantly.
ISBN: 0-7803-9134-9
DOI: 10.1109/ICIP.2005.1529870
Rights: © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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